Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 12 de 12
Filtrar
1.
Infect Disord Drug Targets ; 24(5): e150124225632, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38231058

RESUMEN

The novel bovine viral infection known as lumpy skin disease is common in most African and Middle Eastern countries, with a significant likelihood of disease transfer to Asia and Europe. Recent rapid disease spread in formerly disease-free zones highlights the need of understanding disease limits and distribution mechanisms. Capripox virus, the causal agent, may also cause sheeppox and Goatpox. Even though the virus is expelled through several bodily fluids and excretions, the most common causes of infection include sperm and skin sores. Thus, vulnerable hosts are mostly infected mechanically by hematophagous arthropods such as biting flies, mosquitoes, and ticks. As a result, milk production lowers, abortions, permanent or temporary sterility, hide damage, and mortality occur, contributing to a massive financial loss for countries that raise cattle. These illnesses are economically significant because they affect international trade. The spread of Capripox viruses appears to be spreading because to a lack of effectual vaccinations and poverty in rural areas. Lumpy skin disease has reached historic levels; as a consequence, vaccination remains the only viable option to keep the illness from spreading in endemic as well as newly impacted areas. This study is intended to offer a full update on existing knowledge of the disease's pathological characteristics, mechanisms of spread, transmission, control measures, and available vaccinations.


Asunto(s)
Dermatosis Nodular Contagiosa , Animales , Dermatosis Nodular Contagiosa/virología , Dermatosis Nodular Contagiosa/terapia , Bovinos , Ganado/virología , Agricultores , Virus de la Dermatosis Nodular Contagiosa , Humanos , Vacunación/veterinaria , Capripoxvirus
2.
Adv Respir Med ; 91(6): 516-531, 2023 Nov 14.
Artículo en Inglés | MEDLINE | ID: mdl-37987300

RESUMEN

The potential cancer risk associated with electronic-cigarette (e-cigarette) use is ongoing and remains a subject of debate. E-Cigarettes work by heating a liquid that usually contains nicotine, flavorings, and other chemicals. When the liquid is heated, users inhale an aerosol into their lungs. While e-cigarettes are generally considered less harmful than traditional tobacco products, they still contain potentially harmful chemicals, which can damage DNA and lead to cancer. Several studies have investigated the potential cancer risk associated with e-cigarette use, while other studies have suggested that e-cigarette aerosol may contain carcinogenic chemicals that could increase the risk of lung and bladder cancer in humans. However, these studies are limited in their scope and do not provide conclusive evidence. Overall, the long-term cancer risk associated with e-cigarette use remains uncertain, more research is needed to fully understand the potential risks and benefits of e-cigarettes. However, this review will allow the investigator to get more recent updates about e-cigarettes.


Asunto(s)
Sistemas Electrónicos de Liberación de Nicotina , Neoplasias de la Vejiga Urinaria , Vapeo , Humanos , Nicotina/efectos adversos , Vapeo/efectos adversos , Aerosoles
3.
Curr Cancer Drug Targets ; 23(10): 778-791, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37157204

RESUMEN

It is possible for tumors to develop resistance to currently used drugs. However, its increasing incidence necessitates further study and the development of novel therapies This review explores our current understanding of the factors that enable drug resistance, which include, inactivation of the drug, reduced drug uptake, increased drug efflux, metabolic effect, inhibition of apoptosis, epithelialmesenchymal transition, modified membrane transport, and heterogeneity of inherent tumor cell. This manuscript will also explore some genetic and epigenetic alterations that may encourage drug resistance and fundamental mechanisms of the reluctance of drugs in leukemia, ovarian and breast cancer and it concludes with a few solutions for managing drug resistance.


Asunto(s)
Antineoplásicos , Neoplasias de la Mama , Humanos , Femenino , Resistencia a Antineoplásicos/genética , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Transición Epitelial-Mesenquimal , Antineoplásicos/farmacología , Antineoplásicos/uso terapéutico
5.
Asian Pac J Cancer Prev ; 23(7): 2469-2476, 2022 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-35901355

RESUMEN

BACKGROUND: An utmost increase of breast cancer burden during the last several decades was reported in Asian countries. Findings from literature confirm that risk factors of breast cancers can be modifiable and non-modifiable in nature. OBJECTIVE: The present study is designed to identify specific modifiable and non-modifiable risk factors associated with breast cancer. METHODS: A matched case-control study was conducted considering 187 cases as women diagnosed with breast cancer and 187 hospital-controls as women without having breast cancer visiting the hospital. Other than standard risk factors, stress is measured using Perceived Stress Scale (PSS) and stress is measured using Pittsburgh Sleep Quality Index (PSQI). Several modifiable and non-modifiable risk factors were assessed using conditional logistic regression to find out significant association with breast cancer. RESULTS: Regular multi-vitamin uptake (OR = 3.38; 95%CI = 1.69 - 6.77; p-value = 0.001), poor sleep (OR = 11.29; 95%CI = 4.36 - 29.25; p-value < 0.001), irregular sleep (OR = 34.11; 95%CI = 10.03 - 115.92; p-value < 0.001) and severe stress (OR = 6.74; 95%CI = 3.06 - 14.81; p-value < 0.001) were found to be the highest odds ratio among all modifiable risk factor of breast cancer. Also, age at first childbirth less than 30 years (OR = 0.44; 95%CI = 0.25 - 0.78; p-value = 0.005) was found protective against breast cancer. CONCLUSION: In our study, stress, sleeping pattern, and regular multi-vitamin uptake were found to be significant modifiable risk factors of breast cancer. None of the non-modifiable risk factors were found to be significantly associated with the risk of breast cancer.


Asunto(s)
Neoplasias de la Mama , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/etiología , Estudios de Casos y Controles , Femenino , Humanos , India/epidemiología , Factores de Riesgo , Vitaminas
6.
Infect Disord Drug Targets ; 22(7): 67-75, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35532252

RESUMEN

Mucormycosis, also known as "black fungus," is a potentially fatal disorder that causes blurred or double vision, chest pain, and breathing problems. The introduction of novel risk factors and causative agents, as well as the problems with controlling the disease, are all significant problems with mucormycosis in India. It is most common among COVID-19 patients. Mucormycosis is an invasive fungal disease that primarily affects immunosuppressant patients, mainly caused by mold fungi of the genus mucor, rhizopus, rhizomucor, and absidia, which are in the zygomycetes class and the Mucorales order. The most common risk factor is diabetes mellitus, followed by haematological malignancy and solid-organ transplantation. Reversal of underlying predisposing factors, surgical debridement of infected tissues, and proper antifungal therapy are all required for the treatment of mucormycosis. In this review, the epidemiology, pathogenesis, and symptoms of black fungus and its association with covid-19, treatment, and diagnosis are discussed.

7.
Comb Chem High Throughput Screen ; 25(13): 2141-2152, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35249476

RESUMEN

Cancer is a vast form of the disease that can begin in almost any organ or tissue of the body when abnormal cells grow uncontrollably and attack nearby organs. The traditional approaches to cancer diagnosis and drug development have certain limitations, and the outcomes achieved through the traditional approaches applied to cancer diagnosis and drug development are not quite promising. Artificial intelligence is not new to the medical research sector. AI-based algorithms hold great potential for identifying mutations and abnormal cell division at the initial stage of cancer. Advanced researchers are also focusing on bringing AI to clinics in a safe and ethical manner. Early cancer detection saves lives and is critical in the fight against the disease. As a result, as part of earlier detection, computational approaches such as artificial intelligence have played a significant role in cancer diagnosis and drug development.


Asunto(s)
Inteligencia Artificial , Neoplasias , Algoritmos , Desarrollo de Medicamentos , Humanos , Neoplasias/diagnóstico , Neoplasias/tratamiento farmacológico
8.
Infect Disord Drug Targets ; 20(2): 237-243, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-30652652

RESUMEN

METHODS: A series of 1-{2-(prop-2-ynyloxy)aryl}-3-hydroxy-3-(4'-trifluoromethylphenyl) prop-2-en-1-ones obtained by photo-irradiation of 2-{2-(prop-2-ynyloxy)benzoyl}-3-(4- trifluorome-thyl-phenyl)oxiranes (that were characterized by spectral studies: FT-IR, 1H NMR, 13C NMR and Mass analysis) was screened for the anti-malarial activity by evaluating against chloroquine-sensitive P. falciparum (CD7). The molecular docking studies using AutoDock Vina were also performed to further ascertain the efficacy of these compounds with PDB:4ORM. RESULTS: Among these, the hydroxyenone derivatives 2b, 2c and 2a exhibited very potent antimalarial activity that was clearly evinced by the results of molecular docking. Binding energies of hydroxyenone compounds were calculated and found in the range of -10.4 to -9.0 kcal/mol. CONCLUSION: Compound 2b had the strongest binding affinity with docking score of -10.4 kcal/mol.


Asunto(s)
Antimaláricos/química , Antimaláricos/farmacología , Compuestos Epoxi/química , Compuestos Epoxi/farmacología , Plasmodium falciparum/efectos de los fármacos , Antimaláricos/síntesis química , Sitios de Unión , Descubrimiento de Drogas , Compuestos Epoxi/síntesis química , Eritrocitos/parasitología , Humanos , Concentración 50 Inhibidora , Simulación del Acoplamiento Molecular , Esquizontes/efectos de los fármacos , Relación Estructura-Actividad
9.
Indian J Med Res ; 147(5): 445-455, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-30082568

RESUMEN

Hepatitis C virus (HCV) infection is a blood borne and transfusion-transmitted infection (TTI). It has emerged as one of the major health challenges worldwide. In India, around 12-18 million peoples are infected with HCV, but in terms of prevalence percentage, its looks moderate due to large population. The burden of the HCV infection increases due to lack of foolproof screening of blood and blood products before transfusion. The qualified screening and quantification of HCV play an important role in diagnosis and treatment of HCV-related diseases. If identified early, HCV infection can be managed and treated by recently available antiviral therapies with fewer side effects. However, its identification at chronic phase makes its treatment very challenging and sometimes ineffective. The drugs therapy for HCV infection treatment is also dependent on its genotype. Different genotypes of HCV differ from each other at genomic level. The RNA viruses (such as HCV) are evolving perpetually due to interaction and integration among people from different regions and countries which lead to varying therapeutic response in HCV-infected patients in different geographical regions. Therefore, proper diagnosis for infecting virus and then exact determination of genotype become important for targeted treatment. This review summarizes the general information on HCV, and methods used for its diagnosis and genotyping.


Asunto(s)
Genotipo , Hepacivirus/genética , Hepatitis C/genética , Hepatitis C/diagnóstico , Hepatitis C/epidemiología , Humanos , India/epidemiología , Prevalencia
10.
Comb Chem High Throughput Screen ; 21(3): 194-203, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29436997

RESUMEN

BACKGROUND: Malaria is one of the most vital infectious diseases caused by protozoan parasites of the Plasmodium genus. As P. falciparum, the cause of most of the severe cases of malaria, is increasingly resistant to available drugs such as amodioquine, chloroquine, artemisinin, and antifolates, there is an urgent need to identify new targets for chemotherapy. OBJECTIVE: This study screened novel pyrazole derivatives carrying iminium & benzothiazole group for antimalarial potential against P. falciparum chloroquine sensitive (3D7) strain. MATERIALS & METHODS: Several pyrazole schiff base hybrids with a wide range of substitution have been synthesized via condensation of substituted aniline with substituted 4-formylpyrazole and evaluated for their in vitro antimalarial activity against asexual blood stages of human malaria parasite, Plasmodium falciparum. The interaction of these conjugate hybrids was also investigated by molecular docking studies in the binding site of P. falciparum cystein protease falcipain-2. The pharmacokinetic properties were also studied using ADME prediction. RESULTS: Among all compounds, 6bf and 6bd were found to be potential molecules with EC50 1.95µg/ml and 1.98µg/ml respectively. Docking study results reveal that the pyrazole schiff base derivatives occupy the PfFP binding sites and they show good interactions with significant values of binding energies. CONCLUSION: We provide evidence which implicates pyrazole Schiff base hybrids as potential prototypes for the development of antimalarial agents.


Asunto(s)
Antimaláricos/síntesis química , Pirazoles/uso terapéutico , Bases de Schiff/uso terapéutico , Antimaláricos/metabolismo , Benzotiazoles/química , Biología Computacional , Cisteína Endopeptidasas/metabolismo , Evaluación Preclínica de Medicamentos , Humanos , Iminas/química , Simulación del Acoplamiento Molecular , Plasmodium falciparum/efectos de los fármacos , Plasmodium falciparum/enzimología , Pirazoles/química , Bases de Schiff/química
11.
Eur J Med Chem ; 101: 326-33, 2015 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-26160113

RESUMEN

A series of novel 2,5-diarylpyrazolo[1,5-a]pyrimidin-7-amines were designed as COX-2 inhibitors by molecular docking studies and their synthesis was accomplished via an expeditious one-pot reaction. Structures of the compounds were established by NMR ((1)H-(13)C), IR spectroscopy and high resolution mass spectrometry. All the eleven compounds have been screened for their in vivo anti-inflammatory activity on rats by carrageenan-induced rat paw edema assay. Correlation studies of calculated moldock score and observed percentage inhibition have also been carried out which concluded that the synthesized 2,5-diarylpyrazolo[1,5-a]pyrimidin-7-amines act as potent anti-inflammatory agents up to the 4th hour of study.


Asunto(s)
Antiinflamatorios no Esteroideos/síntesis química , Antiinflamatorios no Esteroideos/farmacología , Inhibidores de la Ciclooxigenasa 2/farmacología , Diseño de Fármacos , Edema/tratamiento farmacológico , Simulación del Acoplamiento Molecular , Pirazoles/síntesis química , Pirazoles/farmacología , Pirimidinas/síntesis química , Pirimidinas/farmacología , Animales , Antiinflamatorios no Esteroideos/química , Carragenina , Ciclooxigenasa 2/metabolismo , Inhibidores de la Ciclooxigenasa 2/síntesis química , Inhibidores de la Ciclooxigenasa 2/química , Relación Dosis-Respuesta a Droga , Edema/inducido químicamente , Masculino , Estructura Molecular , Pirazoles/química , Pirimidinas/química , Ratas , Ratas Wistar , Relación Estructura-Actividad
12.
Eur J Med Chem ; 85: 147-78, 2014 Oct 06.
Artículo en Inglés | MEDLINE | ID: mdl-25084143

RESUMEN

Malaria has emerged as a major health problem worldwide after the appearance of resistant strains of Plasmodium falciparum to the most of antimalarial drugs. The development of resistance by the parasite against first line as well as second line antimalarial drugs has drawn attention to develop new drugs to alleviate the disease burden. Therefore, there is a great need for new antimalarial drugs with improved attributes over older therapies. This review is primarily addressed to description of the recent advances in the synthesis of heterocyclic compound as antimalarial agents which can facilitate the development of more potent and effective antimalarial agents.


Asunto(s)
Antimaláricos/síntesis química , Técnicas de Química Sintética/métodos , Antimaláricos/química , Compuestos Heterocíclicos/química , Humanos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...